baber/WOPTO huggingface dataset:
Patent GB-487491-A (GB)
Title: Improved process for the autogenous welding or soldering of metals
IPC: B23K5/00
Filed: 1938-02-28
Abstract: 487,491. Making chains and electric fittings; soldering ; uniting by fusion. GERULL, H. Feb. 28, 1938, No. 6229. Convention date, April 17, 1937. [Classes 83 (ii) and 83 (iv)] In a process of autogenous welding or soldering, the work parts are subjected to the action of a burning mixture of combustible gas and a heating gas, such as oxygen, only during the actual welding period, and are subjected before and after uniting to the action of the burning combustible gas alone. Oxidation is thus prevented by the parts before and after welding being enveloped in the protecting atmosphere of the burning combustible gas so as to exclude atmospheric air. The parts after uniting are cooled in the flame of the combustible gas to the temperature thereof. The combustible gas may consist of hydrogen or a non-oxidizing mixture of acetylene and oxygen. The heating gas may be supplied to the burning combustible gas through a cam-operated valve. Stationary burners may thus be used for making composite leading-in-wires for electric lamps, radio tubes &c. and for welding chains.
Patent GB-452792-A (GB)
Title: Improvements in or relating to valve gear for fluid-pressure engines
IPC: B41B7/16
Filed: 1935-02-28
Abstract: 452,792. Engine valve-gear. WORTHINGTON-SIMPSON, Ltd., Lowfield Works, Newark-on-Trent. - (Worthington Pump & Machinery Corporation; Harrison, New Jersey, U.S.A.) Feb. 28, 1935, No. 6407. [Class 122 (ii)] A fluid-actuated valve 7 comprises a central portion with enlarged differential heads 8, 9, and has negative exhaust laps and positive pressure laps so that the valve in passing its central position exhausts from one cylinder port before opening another to fluid-pressure to prevent stalling. Starting-ports are provided to start the valve reversal. Fluid is passed from one end of the cylinder to the other through the valve to bring the piston to rest. Larger ports permit fluid to pass to the cylinder after the piston has started its reverse movement. The valve is provided with cushioning means, and auxiliary distributing-sliding rings may be carried thereby. Steam is supplied from inlet 15 to branches 16, 16<1>. In the position shown in Fig. 12, steam passes from branch 16<1>, through sleeve ports 18<1>, valve ports 231, sleeve ports 191 to the cylinder 1 and moves the piston to the left. Steam also passes through port 251 to the cylinder end. Steam exhausts from the left-hand side of the piston through port 21, valve recess 26 to the outlet 13, Fig. 7. As the valve is moved to the left, trapped steam in space B<1> cushions the valve. The valve is held to the left by the differential steam and exhaust pressures in the inner diameter of the valve. When the piston covers port 21 cushioning-steam is trapped in the cylinder end. An auxiliary exhaust takes place through passages 31, 32. When the piston passes port 28, steam passes to space A, and from there to the left of the piston to effect cushioning. The steam valve starts its movement to the right under differential pressure, and steam is also supplied to space B<1> from space A<1> through the holes 381 and the clearance between the ring 12 and the valve, Fig. 4. The cut-out portion 26 provides negative exhaust lap, so that steam will be exhausted from one cylinder port before the other is open to steam. When the valve in its motion passes port 8, main steam enters the chamber A and completes the valve movement, first opening ports 18, 431 and next closing ports 18<1>, 43. The main piston in its motion to the right, receives increasing quantities of steam through ports 35, 31, 40, and finally through port 21.
Patent GB-397918-A (GB)
Title: Improvements relating to electrical measuring instruments
IPC: G01R27/26
Filed: 1932-03-03
Abstract: 397,918. Inductance, capacitance, and resistance measurements. EVERSHED & VIGNOLES, Ltd. and PERRY, C. E., Acton Lane Works, Chiswick, London. March 3, 1932, No. 6459. [Class 37.] A direct reading alternating-current instrument of the moving coil ratiometer type is provided with a field magnet core system energized by alternating current, the inductance, capacitance or resistance of the test-piece to be measured being connected in one of the moving- coil circuits while a standard is connected in the other moving-coil or control circuit. In an inductance measurement, as the flux. due to the field magnet is in phase with the current in the moving-coil system the instrument can be calibrated to read inductance values directly in relation to the standard employed. In resistance measurements, a phase-shifter is employed in the field circuit to advance the flux, into phase with the current in the moving coils. In capacitance measurements, a torque is produced since the flux due to the field magnets is in phase opposition to the current in the moving-coils. A phase-adjuster in the field circuit may be provided to retard the field flux so that it lags by 90 degrees behind the applied voltage. In one arrangement, Fig. 2, the control and deflecting moving-coils C, D, which may be at any suitable angle to each other, are connected with unknown and standard capacitances X, K and a phase-shifting device R, L is connected across the supply. A portable meter, Fig. 3, comprises a hand-driven two-phase generator having slip-rings A<1>, A<2> energizing primary windings P<1>, P<2> of a phaseshifting transformer the movable secondary S of which supplies the field winding F. A singlephase supply may be employed with suitable phase-splitting devices. Instead of the moving- coil system being supplied from the source it may be connected to the secondary winding S.
Patent GB-1495833-A (GB)
Title: Method and apparatus for offshore submersible oil storage and drilling
IPC: E21B43/36
Filed: 1975-02-17
Abstract: 1495833 Floating storage tanks OFFSHORE TECHNOLOGY CORP 17 Feb 1975 [19 Feb 1974] 6547/75 Heading B7A A semi-submersible drilling and oil storage unit has storage hull 12 which contains a first group of tanks 80 for air and oil and a second group of tanks 84 for water and oil. Each of the tanks has connections for fluid input and discharge. Fluid control apparatus inserts air through these connections into the first group of tanks and water ballast into the second group to submerge the hull to a given submerged draft. The fluid control apparatus includes arrangements for inserting oil into the first and second group of tanks and simultaneously expelling air and water from the respective tanks in proportion to maintain the given buoyancy of the hull and the given submerged draft. Stabilizers 14 are articulately connected to the hull around its outer edge.
Patent GB-374156-A (GB)
Title: Improvements in the manufacture of chilled rolls
IPC: B22D19/16
Filed: 1931-05-30
Abstract: 374,156. Casting composite articles. ROBBINS, W. A., 1, Lower Green, Tipton, Staffordshire, JONES, S. A. A., 1, East Castle Street, Bridgnorth, Shropshire, and JONES, E. H., 24, Westdale Road, Rock Ferry, Birkenhead. May 30, 1931, No. 6557. [Class 83 (i).] Moulds.-In casting chill rolls by first filling the mould with the usual " chill " metal and fater a short time displacing the central portion by steel or other tough metal the mould comprises two chills A with sand moulds B, C for the ends, the former being connected to the overflow e2 and the latter to the runner d<1>. In a modification the metal is poured in at the top and the displaced metal is discharged through a closable opening at the bottom of the mould. Chills may be provided in the moulds B, C where the journals are formed.
Patent GB-221740-A (GB)
Title: Improvements in bubble signs for advertising and like purposes
IPC: G09F13/24
Filed: 1924-03-14
Abstract: 221,740. Orme, J. March 14, 1924. Moving gases and liquids, utilizing.-Air, gas, or steam is bubbled through liquid stored in glass tubes or receptacles forming signs. As shown in Fig. 1, each tube or element M is provided with two valve-controlled passages B, A communicating with a passage D to which air or gas under pressure is supplied by a suitably operated pump J. The pump serves also to charge the tubes M with liquid. In operation, the air or gas enters the tubes through the passages A and escapes at R. To charge the tubes with liquid, the passages A are closed and the passages B opened, excess liquid escaping at P. Illuminating gas may be bubbled through the tubes and after discharge may be lit to illuminate the sign. Specifications 5911/90, 10366/90. 345/06, 9308/12 and 23849/12 are referred to.
Patent GB-369731-A (GB)
Title: Improvements in and relating to fuels for use in internal combustion engines and for other purposes
IPC: C10L1/10
Filed: 1931-03-03
Abstract: Motor spirit consists of liquid hydrocarbon and a little aldehyde and volatile base e.g. ammonia.  Ether, alcohol, or other combustible may be added.  5 per cent or less of acetaldehyde, polymers of aldehyde, or of derivatives of an aldehydic character e.g. the combination product of aldehyde and ammonia, is suitable. A mixture containing a larger proportion of aldehyde and base with or without ether may be prepared and added as required to further liquid hydrocarbon.
Patent GB-1085869-A (GB)
Title: Phosphorus containing urea derivatives and their preparation
IPC: C07F9/22
Filed: 1965-02-16
Abstract: Compounds of the formula <FORM:1085869/C2/1> wherein R1, R2 and R3, which may be the same or different, are hydrogen, halogen, alkyl or nitro groups, R4 is C1- 6 alkyl, X is oxygen or sulphur, and A and B, which may be the same or different, are alkylamino-, dialkylamino or alkoxy-, may be obtained by reacting a compound of the formula <FORM:1085869/C2/2> with a compound of the formula <FORM:1085869/C2/3> preferably in the presence of an inert solvent at 20-150 DEG  C. Specified compounds are 3-(p-chlorophenyl) - 1 - methyl - 1 - dimethoxythiophosphinyl urea and - 1 - ethyl - 1 - (bis-dimethylaminophosphinyl) - urea, 3 - (p - tolyl) - 1 - isopropyl - 1 - dimethoxyphosphinyl - urea, 3 - (3,4 - dichlorophenyl) - 1 - ethyl - 1 - (bis - dimethylaminophosphinyl) - urea and 3 - (3 - nitrophenyl) - 1 - methyl - 1 - (bis - diethylaminophosphinyl) - urea.  The products have herbicidal properties (see Division A5).ALSO:A plant growth regulating composition comprises a carrier or diluent, and, as active component, a compound of the formula: <FORM:1085869/A5-A6/1> wherein R1, R2 and R3, which may be identical or different, are hydrogen, halogen, alkyl or nitro groups, R4 is C1-6 alkyl, x is oxygen or sulphur, and A and B, which may be identical or different are alkylamino-dialkylamino- or alkoxy groups. The composition may be in the form of a concentrated solution in an organic solvent which may be diluted with the same solvent prior to use.  Solutions made up in water-miscible solvents may be mixed with water when the compounds segregate in liquid form and a conventional stabiliser may be added.  The active compounds may also be deposited on a conventional solid carrier and an adhesive may be added. Alternatively, the active compounds, with or without a carrier, may also be mixed with a suspending agent or stabilizer to form a paste or powder and the latter slurried with water to form a suspension. Conventional wetting agents may also be present and the active compounds may be mixed with other herbicidal substances, insecticides or fungicides or with fertilisers.
Patent GB-488804-A (GB)
Title: Improvements relating to the measurement and supply of liquid reagents to water or other liquid
IPC: C02F1/68
Filed: 1937-03-09
Abstract: 488,804. Mixing fluids in flow proportionately ; disinfecting water-wastepreventers. PENNELL, R. H. L. March 9, 1937, No. 6875. [Class 86] [Also in Group I] Apparatus for adding a dose of one liquid to another, particularly for supplying disinfectant to flushing water, comprises a closed vessel 1, Fig. 5, with a depending pipe 16 fitted with a nozzle 6, Fig. 4, having a constriction 10 forming an air lock beneath which is a chamber 12 which, as the water rises in the tank 15, traps a volume of air. As the water rises the air is forced through the aperture 13 into the vessel and a like volume of disinfectant released when the level of the water falls. The constriction 10 can be adjusted to vary the size of the chamber.
Patent GB-549687-A (GB)
Title: A temporary securing bolt
IPC: B25B31/00
Filed: 1941-05-29
Abstract: 549,687. Bolts; clips. BARKAN, B. May 29, 1941, No. 6881. [Classes 44 and 89 (i)] A temporary securing bolt particularly adapted for clamping plates during riveting in aircraft construction, comprises a rod a hook ended at b to pass through the members h, i to be connected and furnished with a rolled thread close to the hook end. A knurled nut e has a clearance bore g to pass over part of the thread, a tapped portion f effecting the clamping. The clamping face of the nut is slightly concave with rounded-off corners. The nut is relatively massive to facilitate running off when it may slide along the rod a as limited by a flattened formation d, to facilitate the introduction of the bolt into the holes. Instead of the formation d a detachable knob may be provided so that if required the nut may be entirely removed.
Patent GB-565879-A (GB)
Title: Improvements relating to gas fires and to radiants for such fires
IPC: F24C15/24
Filed: 1943-05-03
Abstract: 565,879. Incandescent gas fires; radiants. RADIATION, Ltd., BRATT, L. A., and HILL, H. R. May 3, 1943, No. 6932. [Class 126] Vertical gas-fire radiants comprise refractory bars a having thickened lower and upper ends a<1>, a<2> which serve, when the radiants are assembled to space them apart, the lower portions a<1> having their side edges of stepped or vee formation to engage with complementary sides of the adjacent bars and so provide a closed front wall to the combustion chamber d. The bars are formed on their rear sides with a row of teeth e and the upper thickened portions a<2> have rearwardly projecting edges g which rest against the refractory back b of the fire. The radiants are supported on a ledge i and are held in position by a horizontal cross-bar n. The back piece b, radiants a and burner c are enclosed in an air-heating casing h having inlets and outlets o, p at the lower and upper ends respectively.
Patent GB-436143-A (GB)
Title: Glycerol ethers
Filed: 1934-03-05
Abstract: For the production of b -ethers of glycerol the alkali metal compound of an alkylidine or aralkylidine ether of glycerol is reacted with an inorganic ester of an aliphatic alcohol having at least 8 carbon atoms and hydrolyzing the compound thus produced. The b -ethers are oily or waxy and when emulsified, as by the salts of cetyl sulphuric ester, they yield useful softening agents.  They may be converted into detergents as described in Specification 436,209.  In the examples benzylidine glycerol is treated with potassium or sodium and condensed with cetyl iodide, cetyl sodium sulphate, or octadecyl iodide, the products being hydrolyzed with hydrochloric acid.ALSO:The b -ethers of glycerol with aliphatic alcohols having at least 8 carbon atoms, which are of an oily or waxy nature, may be emulsified with cetyl sulphuric ester, yielding useful softening agents.
Patent GB-548370-A (GB)
Title: Improvements in or relating to frequency modulation
IPC: H03K7/06
Filed: 1941-05-30
Abstract: 548,370. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 30, 1941, No. 6971. Convention date, May 31, 1940. [Class 40 (v)] Frequency modulation is effected by converting a frequency stabilized wave into a wave of sawtooth form which is combined with a modulating wave to produce square waves of width and spacing depending on the modulating wave, the square waves being differentiated to produce a series of pulses the spacing of which is dependent on the modulating wave, and which are then applied to a resonant circuit to produce frequency modulated waves of constant midfrequency. In the arrangement shown, V2 is a saw-tooth generator controlled by a crystalstabilized sine-wave oscillator V1 and the sawtooth wave form is applied to V3 whilst an audio frequency modulating wave from transformer 1 is applied to V4 over a network R4, C2 so that voltage input to V4 is inversely proportional to frequency. The outputs of V3, V4 are combined in V5 to produce the wave form shown at 5 in Fig. 3 which is subjected to amplitude limitation in V6 to produce square waves, Fig. 4a which are differentiated by network C3, R5 and applied to V7 which removes the resulting equally spaced negative pulses, Fig. 4b and passes on the positive pulses which are spaced dependent on the modulating wave and are applied over V8 to resonant circuit L, C4 to produce frequency modulated waves, the resonant circuit being tuned to the oscillator frequency or a harmonic. In a modification, a pair of valves operating as described in U.S.A. Specification 2,276,565 are used to limit the upward and downward swings of the combined saw-tooth and modulating wave.
Patent GB-565412-A (GB)
Title: Improvements relating to oil filtering apparatus
IPC: B01D35/147
Filed: 1943-05-04
Abstract: 565,412. Lubricating - oil filtering apparatus. ROBERTSON, E. R. May 4, 1943, No. 7003. [Class 46] [Also in Group XXXIV] Oil-filtering apparatus, adapted for use with the circulating lubricating oil of an internalcombustion engine, comprises means for passing all the oil flow through filtering means or alternatively, at will, passing a byepass part only of the oil flow to the filtering means and thence to the byepass flow outlet which delivers direct to the oil sump. As shown diagrammatically in Fig. 1, a filter 6 is arranged in a line branching from the main oil passageway in front of a spring-loaded valve 5 and the filter has on its outlet side a two-way valve 8 adapted to pass the flow from the filter either to the main oil passageway beyond the spring-loaded valve 5 and so to the engine bearings &c. 3, or direct to the sump 2. When filtration of only this latter byepass quantity is desired a finer filter is used which, assisted if necessary by a restrictor 10, causes a greater pressure in the main oil passageway in front of the spring-loaded valve 5 so that this valve 5 opens to allow unfiltered oil to pass to the bearings &c. 3. One form of apparatus is shown in Figs. 3, 4, 6, of which Fig. 3 is a top plan view and Figs. 4, 6 are full and part sectional elevations taken on lines 4-4 and 6-6. The main oil inlet passageway 31 has a branch 39 opening to the space above a filter cartridge 21 from which the filtered oil passes through apertures 18 in a tube 17; this tube at its upper end has openings 42 which communicate with a duct 44 leading to the full-Bow outlet passageway 32 and with a duct 43 forming the byepass outlet. In the state shown, a plug 46 closes the duct 43 while an apertured plug 47 gives communication between the duct 44 and the main outlet passageway 32. Thus, all the oil passes through the filter to the main outlet passageway 32 since the pressure is not sufficient to open the spring-loaded valve mounted in a plug 35 which is inserted in a duct 33 connecting the main inlet and outlet passageways 31, 32. On inter-changing the plugs 46, 47 it will be seen that the oil from the filter cartridge 21 passes only to the byepass duct 43 and the pressure in main inlet passageway 31 and duct 33 is such as to open the spring-loaded valve in the plug 35. An arrangement is also described, Figs. 8-12 (not shown), in which the interchangeable plugs 46, 47 are substituted by spring-plunger valves which 'are automatically positioned when the appropriate filter cartridge for full flow or only byepass flow filtration is inserted in the casing.
Patent GB-125061-A (GB)
Title: Improvements in Valve and Ignition Gears for Internal Combustion Engines.
IPC: F01L1/047
Filed: 1919-03-20
Abstract: 125,061.. Domestic Engineering Co., (Assignees of Kettering, C. F.). April 1, 1918, [Convention date]. Splash guards.-In an internal-combustion engine having a breather pipe leading from the crank chamber to an inlet valve on the cylinder head, a guard 200 having baffles 204 is mounted between the breather pipe and the crank chamber to prevent lubricating oil passing to the working cylinder.
Patent GB-108871-A (GB)
Title: Improvements in or relating to Electrically Controlled Clutches.
IPC: H02K7/108
Filed: 1916-05-17
Abstract: 108,871. Davies, W. Langdon-, Soames, A., and Naamlooze Vennootschap de Nederlandsche Thermo - Telephoon Maatschappij. May 17, 1916. Dynamos, driving.-In means for driving dynamos or other apparatus by means of an electromotor driving through an electro-magnetic clutch, a coil tending to disengage the clutch is arranged in circuit with the motor armature, so as to prevent shock due to overload. The clutch is normally engaged by spring means or by a coil E connected to mains G, the shaft B being driven by a motor C, C' of which the armature is in circuit with a coil H tending to disengage the clutch. When an overload occurs on the driven shaft D, the increased current in the motor causes slip of the clutch, so that the load is taken up gradually. The shaft D may drive a dynamo K, K<1> which may be used partly or entirely to excite a coil J assisting or opposing the coil H. The dynamo may comprise slip-rings and a commutator so that both continuous and alternating currents may be produced, or separate continuous and alternating current dynamos may be driven, the current for the latter being, in some cases, provided by the former.
Patent GB-1097492-A (GB)
Title: Improvements in and relating to bearing assemblies for supporting shafts
IPC: F16C23/04
Filed: 1965-02-18
Abstract: 1,097,492. Bearings. PHILIPS GLOEILAMPENFABRIEKEN N.V. Feb. 18, 1965 [Feb. 21, 1964], No. 7067/65. Heading F2A. In a bearing assembly a self-aligning bearing has an outer surface, including a cylindrical surface 5 coaxial with the bearing between two part-spherical surfaces 3, the part-spherical surfaces each being engaged by portions of an annular synthetic thermoplastic body 9 which is anchored to a fixed member 6 encircling and spaced from the cylindrical surface. The body 9 is of nylon or a linear polyamide and is formed by injection moulding, axial holes or projections and depressions in the member 6 anchoring the body 9 so that shrinkage of body 9 causes formation of space 12. The bearing 2 is of sintered metal containing lubricant, any lubricant expelled by heating collecting in space 12 and returning into the bearing on cooling.
Patent GB-1101359-A (GB)
Title: An improved packet for tobacco
IPC: B65D77/10
Filed: 1964-02-20
Abstract: 1,101,359. Tobacco packet. W. H. BOSSONS and THRISSELL ENGINEERING CO. Ltd. 17 Feb., 1965 [20 Feb., 1964], No. 7135/64. Heading B8C. The mouth of a block ended packet is closed by forming tucks 10 in the side wall 7 so that when an outer closure flap 9 is folded upwardly a pocket is formed into which an inner closure flap 8 may be folded. In the embodiment described a single rectangular blank is folded to U-shape about a former and the side walls 6 and 7 and the block end 5 are folded and secured. The former is then removed and a rectangular block of tobacco inserted in the wrapper and the closure formed.
Patent GB-928717-A (GB)
Title: Polyamide acid polymers and their production
IPC: C08G73/10
Filed: 1962-02-23
Abstract: In an improvement in or modification of the process claimed in the parent Specification, the reaction between the tetracarboxylic acid dianhydride and the diamine is carried out at a temperature above 60 DEG C. for a period of time sufficient to provide a polymer composed of at least 50% of the polyamide-acid.  Examples (1) and (2) describe the preparation of solutions of polyamide-acids in:- (1) N:N-dimethylacetamide and (2) N-methylcaprolactam by reacting pyromellitic dianhydride and 4:41-diaminodiphenyl ether in the presence of the specified solvents.  The products of the process may be converted by heat treatment or may be applied to substrates as coatings optionally pigmented with titanium dioxide.  Specification 903,271 also is referred to.